<div id="viewer-container"></div>
<script>
  let viewer = undefined
  function initViewer() {
    viewer = new DC.Viewer('viewer-container')
    viewer.scene.canvas.setAttribute('tabIndex', 0)
    let baselayer_midnight = DC.ImageryLayerFactory.createBaiduImageryLayer({
      style: 'dark'
    })
    viewer.addBaseLayer(baselayer_midnight, {
      iconUrl: 'examples/images/icon/midnight.png',
      name: '午夜蓝'
    })
    let chart = new DC.Chart()
    viewer.use(chart)
    viewer.flyToPosition(
      new DC.Position(108.198353, 20.758452, 10733735.96, 0, -90, 0),
      () => {
        chart.setOption(getOption())
      }
    )
  }

  function getOption(e) {
    var geoCoordMap = {
      上海: [121.4648, 31.2891],
      东莞: [113.8953, 22.901],
      东营: [118.7073, 37.5513],
      中山: [113.4229, 22.478],
      临汾: [111.4783, 36.1615],
      临沂: [118.3118, 35.2936],
      丹东: [124.541, 40.4242],
      丽水: [119.5642, 28.1854],
      乌鲁木齐: [87.9236, 43.5883],
      佛山: [112.8955, 23.1097],
      保定: [115.0488, 39.0948],
      兰州: [103.5901, 36.3043],
      包头: [110.3467, 41.4899],
      北京: [116.4551, 40.2539],
      北海: [109.314, 21.6211],
      南京: [118.8062, 31.9208],
      南宁: [108.479, 23.1152],
      南昌: [116.0046, 28.6633],
      赣州: [116.0046, 25.6633],
      南通: [121.1023, 32.1625],
      厦门: [118.1689, 24.6478],
      台州: [121.1353, 28.6688],
      合肥: [117.29, 32.0581],
      呼和浩特: [111.4124, 40.4901],
      咸阳: [108.4131, 34.8706],
      哈尔滨: [127.9688, 45.368],
      唐山: [118.4766, 39.6826],
      嘉兴: [120.9155, 30.6354],
      大同: [113.7854, 39.8035],
      大连: [122.2229, 39.4409],
      天津: [117.4219, 39.4189],
      太原: [112.3352, 37.9413],
      威海: [121.9482, 37.1393],
      宁波: [121.5967, 29.6466],
      宝鸡: [107.1826, 34.3433],
      宿迁: [118.5535, 33.7775],
      宿州: [117.5535, 33.7775],
      常州: [119.4543, 31.5582],
      广州: [113.5107, 23.2196],
      廊坊: [116.521, 39.0509],
      延安: [109.1052, 36.4252],
      张家口: [115.1477, 40.8527],
      徐州: [117.5208, 34.3268],
      德州: [116.6858, 37.2107],
      惠州: [114.6204, 23.1647],
      成都: [103.9526, 30.7617],
      扬州: [119.4653, 32.8162],
      承德: [117.5757, 41.4075],
      拉萨: [91.1865, 30.1465],
      无锡: [120.3442, 31.5527],
      日照: [119.2786, 35.5023],
      昆明: [102.9199, 25.4663],
      杭州: [119.5313, 29.8773],
      枣庄: [117.323, 34.8926],
      曲阜: [117.323, 35.8926],
      柳州: [109.3799, 24.9774],
      株洲: [113.5327, 27.0319],
      武汉: [114.3896, 30.6628],
      汕头: [117.1692, 23.3405],
      江门: [112.6318, 22.1484],
      沈阳: [123.1238, 42.1216],
      沧州: [116.8286, 38.2104],
      河源: [114.917, 23.9722],
      泉州: [118.3228, 25.1147],
      泰安: [117.0264, 36.0516],
      泰州: [120.0586, 32.5525],
      济南: [117.1582, 36.8701],
      济宁: [116.8286, 35.3375],
      海口: [110.3893, 19.8516],
      淄博: [118.0371, 36.6064],
      淮安: [118.927, 33.4039],
      深圳: [114.5435, 22.5439],
      清远: [112.9175, 24.3292],
      温州: [120.498, 27.8119],
      渭南: [109.7864, 35.0299],
      湖州: [119.8608, 30.7782],
      湘潭: [112.5439, 27.7075],
      滨州: [117.8174, 37.4963],
      潍坊: [119.0918, 36.524],
      烟台: [120.7397, 37.5128],
      玉溪: [101.9312, 23.8898],
      珠海: [113.7305, 22.1155],
      盐城: [120.2234, 33.5577],
      盘锦: [121.9482, 41.0449],
      石家庄: [114.4995, 38.1006],
      福州: [119.4543, 25.9222],
      秦皇岛: [119.2126, 40.0232],
      绍兴: [120.564, 29.7565],
      聊城: [115.9167, 36.4032],
      肇庆: [112.1265, 23.5822],
      舟山: [122.2559, 30.2234],
      苏州: [120.6519, 31.3989],
      莱芜: [117.6526, 36.2714],
      菏泽: [115.6201, 35.2057],
      营口: [122.4316, 40.4297],
      葫芦岛: [120.1575, 40.578],
      衡水: [115.8838, 37.7161],
      衢州: [118.6853, 28.8666],
      西宁: [101.4038, 36.8207],
      西安: [109.1162, 34.2004],
      贵阳: [106.6992, 26.7682],
      连云港: [119.1248, 34.552],
      邢台: [114.8071, 37.2821],
      邯郸: [114.4775, 36.535],
      郑州: [113.4668, 34.6234],
      鄂尔多斯: [108.9734, 39.2487],
      重庆: [107.7539, 30.1904],
      金华: [120.0037, 29.1028],
      铜川: [109.0393, 35.1947],
      银川: [106.3586, 38.1775],
      镇江: [119.4763, 31.9702],
      长春: [125.8154, 44.2584],
      长沙: [113.0823, 28.2568],
      长治: [112.8625, 36.4746],
      阳泉: [113.4778, 38.0951],
      青岛: [120.4651, 36.3373],
      韶关: [113.7964, 24.7028]
    }
    var chatData = [
      [
        '北京',
        [
          [
            {
              name: '北京',
              value: 100
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '上海',
              value: 30
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '广州',
              value: 20
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '大连',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '青岛',
              value: 20
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '石家庄',
              value: 20
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '南昌',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '合肥',
              value: 30
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '呼和浩特',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '宿州',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '曲阜',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '杭州',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '武汉',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '深圳',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '珠海',
              value: 10
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '福州',
              value: 20
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '西安',
              value: 60
            },
            {
              name: '无锡'
            }
          ],
          [
            {
              name: '赣州',
              value: 10
            },
            {
              name: '无锡'
            }
          ]
        ]
      ]
    ]

    var convertData = function(data) {
      var res = []
      for (let i = 0; i < data.length; i++) {
        var dataItem = data[i]
        var fromCoord = geoCoordMap[dataItem[0].name]
        var toCoord = geoCoordMap[dataItem[1].name]
        if (fromCoord && toCoord) {
          res.push({
            fromName: dataItem[0].name,
            toName: dataItem[1].name,
            coords: [fromCoord, toCoord],
            value: dataItem[1].value
          })
        }
      }
      return res
    }

    let n = []
    chatData.forEach(function(e, a) {
      n.push(
        {
          name: e[2],
          type: 'lines',
          coordinateSystem: 'GLMap',
          zlevel: 2,
          effect: {
            show: !0,
            period: 6,
            trailLength: 0.1,
            symbol: 'arrow',
            symbolSize: 5
          },
          lineStyle: {
            normal: {
              color: '#60ff44',
              width: 1,
              opacity: 0.4,
              curveness: 0.2
            }
          },
          data: convertData(e[1])
        },
        {
          type: 'effectScatter',
          coordinateSystem: 'GLMap',
          zlevel: 2,
          rippleEffect: {
            brushType: 'stroke'
          },
          label: {
            normal: {
              show: !0,
              position: 'right',
              formatter: '{b}'
            }
          },
          symbolSize: function(e) {
            return 3 + e[2] / 10
          },
          itemStyle: {
            normal: {
              color: '#60ff44'
            }
          },
          data: e[1].map(function(e) {
            return {
              name: e[0].name,
              value: geoCoordMap[e[0].name].concat([e[0].value])
            }
          })
        }
      )
    })

    return {
      animation: false,
      GLMap: {},
      series: n
    }
  }

  DC.ready(initViewer)
</script>
